Similar to the features of a mechanical speedometer, the ISSPRO Mechanical Tachometer Gauge R8597 is one of the best mechanical tachometer from ISSPRO. It has a gauge size of 3 3/8 inches in diameter and a scale of 0-3500 RPM.

This tach has a ratio of .5:1 and has no counter. It comes in black bezel, black face and a white pointer tip.